Form for sole-laying machines



(No Model.)`

E. E. WINKLEY.

FORM FOR SOLE LAYING MACHINES.

No. 579,206. Patented Mar. 23, 1897',

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ERASTUS E. VVINKLEY, OF LYNN, MASSACHUSETTS, ASSIGNOR TO Tl-IE GOOD-4YEAR SHOE MACHINERY COMPANY, OF PORTLAND, MAINE.

FORM FOR SOLE=LAYING MACHlNES.

SPECIFICATION forming part of Letters Patent No. 579,206, dated March23, 1897.

Application filed .August 6, 1896.

To @ZZ whom, t may concern.-

Be it known that I, ERASTUS E. VINKLEY, a citizen of the United States,residing at Lynn, in the county of Essex and State of Massachusetts,haveinvented certain new and useful Improvements in Forms for Sole-Lav ingMachines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable othlo ersskilled in the art to which it appertains to make and use the same.

The present invention relates to sole-layin g machines, and moreparticularly to an improved sole-pressing form for such machines.

I 5 In practice these forms areinade of rubber or some equivalentyielding material, and they are provided along their margins withreinforced edge pressing portions and at the shank With a projectedshank portion and zo With a shank-block, whereby additional pressure issecured around the edge of the sole and at the shank.

The shank-block has heretofore been made of metal and is 'adjustable inorder to obtain z 5 a more or less projected shank portion, Where by theform is made to conform to the shank of the sole under pressure, andtherebyto approximately shape and mold the shank of the sole during thesole-laying operation.

The form as above described is the one disclosed in Letters Patent ofthe United States No. 557,744, dated April 7, 1896, issued to theGoodyear Shoe Machinery Company, as assignee, upon an invention made byme. The construction disclosed in said patent, while giving good resultsin operation, is open to the objection that the downwardly-projectededges of the metal shank-block exert great pressure upon the rubberpressing-pad of the 4o form at the shank and in time Wear and cutthrough the same, thus rendering t-he pad Worthless.

Another objection t-o the metal shank-block is that to secure the bestresults it must approximate the size and shape of the last at the shankin order to properly lay the sole at this point, and therefore it isnecessary to have a number of such blocks on hand and to change the samein the form When operating 5o upon various sizes of shoes.

The metal block is comparatively expensive to make, and therefore thenecessity of hav- Serial No. 601,933. (No model.)

ing a number of such blocks adds greatly to the expense of the forms.

The object of the present invention is to overcome the objections abovenoted and to generally im prove the construction and operation ofdevices of this nature.

To this end the present invention consists of a sole-pressing formprovided with a pad 6o having integral reinforcing-abutments at theshank; and it further consists of the devices and combination of devicesWhich will be hereinafter described, and pointed out in the claims.

The invention is illustrated in the accompanying drawings, in Which-Figure 1 represents a side view of a solepressing form With the improvedpad secured thereto. Fig. 2 is a plan View of the upper 7o side of thepad. Fig. 3 is a longitudinal section of Fig. l. Fig. 4 is a sectionthrough the shank portion upon line no Fig. l; and Fig.

. 5 is a similar view of a modified form of the device.

In the drawings, D represents my improved solepressing form, of which CZrepresents a rigid bed or frame having the general longitudinal contourot the shape of the bottom of the last, and to which is suitably securedmyv 8o improved pressing-pad d.

The 'pressing-pad CZ is formed of a continuous block of rubber or othersuitable elastic material and provided with a projected shank portion d2and a reinforcing-strip d3, cover- 85 ing, substantially, theedge-pressing portions of the pad, substantially as shown in my patenthereinbefore referred to.

For the purpose of reinforcing the pressingpad d at the shank portion,and thus causing 9o it to give an increased pressure on the sole at thispoint, and thus to cause the shank portion of the sole to conform to thecurvature of the shank portion of the last, l have provided the abutmentd, located upon each 95 side of the medial line of said shank andextending along the same a distance approximating the length of theshank portion of a shoe. As shown in Fig. 2, these reinforcingabutmentsd4 are formed integral With the roo pad, and each has the inclined orbeveled face d5, which extends from the inner face of the pressing-pad dto the surface of the reinforcing edge-pressing strip d3. The edges d6of the abutments d4 are preferably curved, as shown, and projectdownwardly into the projecting shank portion d2. By thus forming theabutments d4 I am enabled to obtain a differential or graduated pressurealong the shank and a pressure which is distributed in a manner toproduce the best results.

It Will be observed that the greatest pressure will be at the outershank portions about at the center of the abutments and the reinforcingedge-pressing strip d3, and that from such point the pressure graduallydecreases toward the outer edges of the abutments and toward each end,and it will be further noted that by means of such construction thepressing-pad will readily conform to the shank of the sole underpressure.

For the purpose of adjusting the projected shank portion of thepressing-pad I have provided the following mechanism: Upon the bed CZ isformed a boss d8, in which is formed a chamber d, which extends throughthe bed d. A threaded bolt d10 is fitted to a correspondingly-threadedbearing in the boss (ZS and bears at one end upon a coiled spring d,which acts upon a plate CX12, bearing upon the top of the reinforcingedge-pressing portions d3 at the shank, the construction being such thatthe shank portion can be projected more or less, as desired.

In the present invention the sole-pressing pad is curved or concaved atthe shank, as shown at e, in order to conform to the curvature of theshoe-shank. The pressing-pad d may be provided with the external bead orrib e', extending around the edge, which is located directly in linewith the ed ge-pressing strip cl3, thus augmenting the pressure of thepad at the edge portion.

In Fig. 5 I have shown a modilication of the device in which theabutments c are each provided with the inwardly-inclined face c', theconstruction in other respects being the same as hereinbefore described.

The operation of my invention has been suficiently set forth inconnection with the foregoing description of its construction, andfurther explanation is deemed unnecessary.

I-Iaving fully described my invention and its mode of operation, I claimas new and desire to protect by Letters Patent of the United Statesl. Ina sole-pressing form for sole-laying machines, a pressingpad providedwith integral reinforcing shank-abutments having inclined faces,substantially as described.

2. In a sole-pressing form for sole-laying machines, a pressing-padprovided with integral reinforcing shank-abutments curved at their baseedges, substantially as described.

3. In a sole-pressing form for sole-laying machines, a pressing-padhaving a projected shank portion provided with a reinforcing marginalstrip and integral reinforcing-abutments, in combination with means toadjust said projected shank, substantially as described.

4. A pressing-pad for sole-laying forms, having an integral marginalbead or rib upon its pressing-face extending entirely around the edge ofthe pad, substantially as described.

5. A pressing-pad for sole-laying forms provided with a marginalreinforcing pressing-strip upon its rear face, and an integral marginalbead or rib upon its pressing-face extending entirely around the edge ofthe pad, substantially as described.

6. A pressing-pad for sole-laying forms provided with a projectedconcave shank portion, and an integral reinforcing strip and abutmentsat said shank portion, substantially as described.

7. A pressing-pad for sole-laying machines provided with a projectedconcave shank portion, and an integral continuous marginal bead or ribupon its pressing-face, substantially as described.

S. A pressing-pad for sole-laying forms having integralreinforcing-abutments at the shank, said abutments having iuwardlyinclined faces, substantially as described.

9. A pressing-pad for sole-laying machines provided with a marginalreinforcing-strip, a projected shank portion and integralreinforcing-abutments extending into such projection, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

ERASTUS E. TINKLEY Witnesses T. HART ANDERSON, A. G. CLIFFORD.

